Summary of Information for OREO (Detail) - USD ($) $ in Thousands		Jun. 30, 2016	Dec. 31, 2015
Other Real Estate Owned Activity [Line Items]
Non-covered OREO		$ 4,187	$ 4,873
Covered OREO		2,017	4,034
Total OREO		6,204	8,907
Non-covered OREO secured by residential real estate		1,821	2,677
Residential real estate loans in the foreclosure process	[1]	$ 2,743	$ 2,727

[1] The recorded investment in consumer mortgage loans collateralized by residential real estate that are in the process of foreclosure according to local requirements of the applicable jurisdiction.